json-check.php

<?php

declare(strict_types=1);

if ($argc == 1) {
    $mode = '';
    $dir = '.';
} elseif ($argc == 2) {
    $mode = $argv[1];
    $dir = '.';
} elseif ($argc == 3) {
    $mode = $argv[1];
    $dir = $argv[2];
} else {
    die('JSON Checker cannot be run with this set of parameters!');
}

if (!in_array($mode, ['', 'fix'])) {
    die('Unsupported mode "' . $mode . '"!');
}

$start = microtime(true);
$invalidFiles = jsonStyleCheck($dir, $mode);
$duration = microtime(true) - $start;

foreach ($invalidFiles as $invalidFile) {
    echo $invalidFile . PHP_EOL;
}

if (!empty($invalidFiles)) {
    echo PHP_EOL;
}

echo 'Checked all files in ' . number_format($duration, 3) . ' seconds, ' . number_format(memory_get_peak_usage() / 1024 / 1024, 3) . ' MB memory used' . PHP_EOL;

if (!empty($invalidFiles)) {
    exit(1);
}

function jsonStyleCheck(string $dir, string $mode)
{
    $ignore = ['./.vscode', './.idea', './.git', './libs/vendor'];
    $invalidFiles = [];
    $files = scandir($dir);
    foreach ($files as $file) {
        if ($file != '.' && $file != '..' && !in_array($dir, $ignore)) {
            if (is_dir($dir . '/' . $file)) {
                $invalidFiles = array_merge($invalidFiles, jsonStyleCheck($dir . '/' . $file, $mode));
            } else {
                if (fnmatch('*.json', $dir . '/' . $file)) {
                    $invalidFile = checkContentInFile($dir . '/' . $file, $mode);
                    if ($invalidFile !== false) {
                        $invalidFiles[] = $invalidFile;
                    }
                }
            }
        }
    }
    return $invalidFiles;
}

function checkContentInFile(string $dir, string $mode)
{
    $fileOriginal = file_get_contents($dir);

    // Normalize line endings
    $fileOriginal = str_replace("\r\n", "\n", $fileOriginal);
    $fileOriginal = str_replace("\r", "\n", $fileOriginal);

    // Ignore line break at the end of the file
    $fileOriginal = rtrim($fileOriginal, "\n");

    // Reformat JSON using PHP
    $fileCompare = json_encode(json_decode($fileOriginal), JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE | JSON_PRESERVE_ZERO_FRACTION);

    if ($fileOriginal == $fileCompare) {
        return false;
    }

    if ($mode == 'fix') {
        file_put_contents($dir, $fileCompare);
    }

    return $dir;
}